then on wednesday the defense a marriage act. it began to listen to both those oral arguments on tuesday and wednesday evening at 8:00 eastern on c-span. >> we can take pictures of the scanswith mris or p.e.t. but there is this a normal gap about how the circuits function in order to move my hand or look at you in process that information or to lay down a memory. we do not know how that works. will be technology development. we came to be able to record from hundreds of thousands of brain cells at the same time. this is the brain activity map. it is giving to be a very exciting moment to put something together that we could >> our roundtable focuses on the president's trip to the middle east. at four.com.ine good morning. whichshing bureau chief is available. thank you for being here. .et me begin with israel fights whatses this question, will israelis and palestinians to do now. how do you respond? what are they going to get the israelis to do. some movement that was not expected. we are seeing that the united states is pushing